Clean Water Act discharge permit · NPDES IN0023914
NEW CASTLE WWTP, New Castle, IN: NPDES IN0023914 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 29Pollutants under a numeric limit
- 15Pollutants with an effluent exceedance
- 3Inspections on file
- 0Formal enforcement actions
NEW CASTLE WWTP holds NPDES permit IN0023914, which discharges to Big Blue R To Driftwood River. EPA’s file records it issued June 23, 2021 and expiring July 31, 2026.
NEW CASTLE WWTP, New Castle, Indiana: Individual permit IN0023914; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued June 23, 2021, term to July 31, 2026, by IDEM; discharges to BIG BLUE R TO DRIFTWOOD RIVER.
- E. coli, colony forming units [CFU]: 3 limits, 59 violations of any kind, 49 effluent exceedances, latest August 31, 2024, largest 26,794% over the limit.
- Nitrogen, ammonia total [as N]: 8 limits, 42 violations of any kind, 30 effluent exceedances, latest June 30, 2024, largest 248% over the limit.
- Chlorine, total residual: 2 limits, 16 violations of any kind, 14 effluent exceedances, latest August 31, 2025, largest 2,483% over the limit.
- Oxygen, dissolved [DO]: 2 limits, 19 violations of any kind, 11 effluent exceedances, latest August 31, 2024, largest 34% over the limit.
- Copper, total recoverable: 4 limits, 21 violations of any kind, 9 effluent exceedances, latest April 30, 2026, largest 200% over the limit.
- Phosphorus, total [as P]: 2 limits, 9 violations of any kind, 7 effluent exceedances, latest July 31, 2024, largest 35,500% over the limit.
- E. coli, MTEC-MF: 0 limits, 6 violations of any kind, 6 effluent exceedances, latest May 31, 2001, largest 99,999% over the limit.
- Cyanide, free [as free]: 4 limits, 4 violations of any kind, 4 effluent exceedances, latest February 28, 2023, largest 891% over the limit.
- Cyanide, free [amenable to chlorination]: 4 limits, 5 violations of any kind, 3 effluent exceedances, latest April 30, 2022, largest 32% over the limit.
- Solids, total suspended: 8 limits, 28 violations of any kind, 2 effluent exceedances, latest November 30, 2010, largest 113% over the limit.
- Lead, total recoverable: 4 limits, 27 violations of any kind, 2 effluent exceedances, latest October 31, 2001, largest 173% over the limit.
- Nickel, total recoverable: 4 limits, 12 violations of any kind, 2 effluent exceedances, latest October 31, 2000, largest 89% over the limit.
- Cadmium, total recoverable: 4 limits, 11 violations of any kind, 2 effluent exceedances, latest October 31, 2000, largest 67% over the limit.
- Toxicity [chronic], Pimephales promelas [Fathead Minnow]: 3 limits, 3 violations of any kind, 1 effluent exceedance, latest May 31, 2012, largest 82% over the limit.
- Noel Statre 7Day Chronic Pimephales: 0 limits, 3 violations of any kind, 1 effluent exceedance, latest May 31, 2012, largest 46% over the limit.
- Discharge event observation [Visual Monitoring]: 8 limits, 34 violations of any kind, 0 effluent exceedances.
- BOD, carbonaceous [5 day, 20 C]: 8 limits, 28 violations of any kind, 0 effluent exceedances.
- Duration: 8 limits, 26 violations of any kind, 0 effluent exceedances.
- Precipitation, monthly accumulation: 8 limits, 23 violations of any kind, 0 effluent exceedances.
- Overflow volume [SS0 volume, CSO volume]: 8 limits, 22 violations of any kind, 0 effluent exceedances.
- Cyanide, total [as CN]: 0 limits, 12 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 4 limits, 11 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 4 limits, 9 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 9 violations of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 0 limits, 8 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 1 limit, 7 violations of any kind, 0 effluent exceedances.
- Number of Events: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Cadmium, total [as Cd]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Chromium, total [as Cr]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Copper, total [as Cu]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Lead, total [as Pb]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Mercury, total [as Hg]: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Mercury, total recoverable: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- Oil and grease, hexane extr method: 1 limit, 4 violations of any kind, 0 effluent exceedances.
- Toxicity [chronic], Ceriodaphnia dubia: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- LC50 Static Renewal 96Hr Acute Pimephales promelas: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Toxicity [acute], Ceriodaphnia dubia: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Toxicity [acute], Pimephales promelas [Fathead Minnow]: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Flow, total: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- September 28, 2026: Reconnaissance without Sampling (S).
- May 18, 2026: Notice of Noncompliance Issued (State).
- May 14, 2026: Management Practice Violations - Violation of a milestone in an order (ST6).
- May 14, 2026: Management Practice Violations - Improper Operation and Maintenance (ST6).
- May 14, 2026: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
- May 14, 2026: Reporting Violations - Improper/ Incorrect Reporting (ST6).
- May 14, 2026: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- May 14, 2026: Effluent Violations - Numeric effluent violation (ST6).
- May 14, 2026: Evaluation (S).
- May 14, 2026: Evaluation (S).
Indiana holds 541 Publicly owned treatment works coverages of this permit type in EPA’s file; 531 were issued before IN0023914. NEW CASTLE WWTP holds 2 permits in Indiana.
Other permits held by NEW CASTLE WWTP
- NEW CASTLE WWTP, New Castle: INL023914, issued January 1, 2021
Coverages issued nearest IN0023914
- May 13, 2021: LAPEL WWTP, Lapel, IN0020087
- May 13, 2021: WINFIELD WWTP, Crown Point, IN0058343, held by WINFIELD WWTP
- May 13, 2021: METAMORA RSD WWTP, Metamora, IN0062391
- May 13, 2021: HOLTON WWTP, TOWN OF, Holton, IN0109703
- May 20, 2021: KENDALLVILLE WWTP, Kendallville, IN0020656
- July 8, 2021: DANA WWTP, Dana, IN0063843, held by DANA WWTP, TOWN OF
- August 6, 2021: BATESVILLE WWTP, CITY OF, Huntersville, IN0039268
- October 20, 2021: FALL CREEK REGIONAL WASTE DISTRICT, Pendleton, IN0049026
- February 9, 2022: HUNTINGBURG MUNICIPAL WWTP, Huntingburg, IN0023124, held by HUNTINGBURG WWTP
- February 9, 2022: CANNELTON WASTEWATER TREATMENT PLANT, Cannelton, IN0064913, held by CANNELTON WWTP
NEW CASTLE WWTP among its neighbors
EPA’s permit file holds 94 discharge permits in the Thorpe Creek-Geist Reservoir subwatershed (HUC 051202010809), IN0023914 among them. Its county holds 32, 2 of them major permits; IN0023914 is a major permit.
Other permits in the Thorpe Creek-Geist Reservoir subwatershed (HUC 051202010809)
- 600 & 600 INTERSECTION IMPROVEMENTS, Mccordsville: INRA14210, minor permit, permit term to July 7, 2029
- 96TH STREET AND CYNTHEANNE ROAD INTERSECTION IMPROVEMENTS, Fishers: INRA14666, minor permit, permit term to October 10, 2029
- ABBOTT COMMONS SECTION 1, Fishers: INRA12503, minor permit, permit term to September 5, 2028
- ABBOTT COMMONS SECTION 2, Fishers: INRA14253, minor permit, permit term to July 14, 2029
- ALEXANDER RIDGE SECTION 1 (LOTS 1-51), Mccordsville: INRA13972, minor permit, permit term to May 28, 2029
- ALEXANDER RIDGE SECTION 2, Mccordsville: INRA14522, minor permit, permit term to August 25, 2029
- ALEXANDER RIDGE SECTION 3, Mccordsville: INRA17087, minor permit, permit term to October 28, 2030
- ALPHABET ACADEMY, Fishers: INRA17829, minor permit, permit term to March 29, 2031
- AMY BEVERLAND ELEMENTARY SCHOOL NEW BUS DRIVE, Indianapolis: INRA07722, minor permit, permit term to April 19, 2026
- ARBOR HOMES HAVEN PONDS SECTION 1, Mccordsville: INRA10149, minor permit, permit term to July 19, 2027
Identity
| Facility as filed | NEW CASTLE WWTP |
|---|---|
| Permittee as filed | NEW CASTLE WWTP |
| NPDES ID | IN0023914 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 23, 2021 |
| Expiration date | July 31, 2026 |
| Issuing agency | IDEM |
| Address | New Castle, IN 47362 |
| Receiving water | BIG BLUE R TO DRIFTWOOD RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Thorpe Creek-Geist Reservoir (HUC 051202010809) |
| Other EPA IDs (FRS) | RCRA handler IND089260525 |
Effluent limits and exceedances
- 43Pollutants on file
- 29Under a numeric limit
- 42With a violation of any kind
- 15With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli, colony forming units [CFU] | 3 | 59 | 49 | August 31, 2024 | 26,794% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 42 | 30 | June 30, 2024 | 248% over the limit |
| Chlorine, total residual | 2 | 16 | 14 | August 31, 2025 | 2,483% over the limit |
| Oxygen, dissolved [DO] | 2 | 19 | 11 | August 31, 2024 | 34% over the limit |
| Copper, total recoverable | 4 | 21 | 9 | April 30, 2026 | 200% over the limit |
| Phosphorus, total [as P] | 2 | 9 | 7 | July 31, 2024 | 35,500% over the limit |
| E. coli, MTEC-MF | 0 | 6 | 6 | May 31, 2001 | 99,999% over the limit |
| Cyanide, free [as free] | 4 | 4 | 4 | February 28, 2023 | 891% over the limit |
| Cyanide, free [amenable to chlorination] | 4 | 5 | 3 | April 30, 2022 | 32% over the limit |
| Solids, total suspended | 8 | 28 | 2 | November 30, 2010 | 113% over the limit |
| Lead, total recoverable | 4 | 27 | 2 | October 31, 2001 | 173% over the limit |
| Nickel, total recoverable | 4 | 12 | 2 | October 31, 2000 | 89% over the limit |
| Cadmium, total recoverable | 4 | 11 | 2 | October 31, 2000 | 67% over the limit |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 3 | 3 | 1 | May 31, 2012 | 82% over the limit |
| Noel Statre 7Day Chronic Pimephales | 0 | 3 | 1 | May 31, 2012 | 46% over the limit |
| Discharge event observation [Visual Monitoring] | 8 | 34 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 8 | 28 | 0 | ||
| Duration | 8 | 26 | 0 | ||
| Precipitation, monthly accumulation | 8 | 23 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 8 | 22 | 0 | ||
| Cyanide, total [as CN] | 0 | 12 | 0 | ||
| Zinc, total recoverable | 4 | 11 | 0 | ||
| Chromium, total recoverable | 4 | 9 | 0 | ||
| pH | 2 | 9 | 0 | ||
| Zinc, total [as Zn] | 0 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 7 | 0 | ||
| Number of Events | 2 | 6 | 0 | ||
| Cadmium, total [as Cd] | 0 | 6 | 0 | ||
| Chromium, total [as Cr] | 0 | 6 | 0 | ||
| Copper, total [as Cu] | 0 | 6 | 0 | ||
| Lead, total [as Pb] | 0 | 6 | 0 | ||
| Nickel, total [as Ni] | 0 | 6 | 0 | ||
| Mercury, total [as Hg] | 0 | 6 | 0 | ||
| Mercury, total recoverable | 0 | 6 | 0 | ||
| Oil and grease, hexane extr method | 1 | 4 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 3 | 2 | 0 | ||
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 2 | 0 | ||
| LC50 Static Renewal 96Hr Acute Pimephales promelas | 0 | 2 | 0 | ||
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 0 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 3 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 3 | 1 | 0 | ||
| Flow, total | 1 | 1 | 0 | ||
| Nitrogen, total [as N] | 2 | 0 | 0 |
Inspections, violations and enforcement
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 14, 2026 | Management Practice Violations - Violation of a milestone in an order | ST6 |
| May 14, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 14, 2026 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| May 14, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 14, 2026 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| May 14, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 28, 2026 | Reconnaissance without Sampling | S |
| May 14, 2026 | Evaluation | S |
| May 14, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| May 18, 2026 | Notice of Noncompliance Issued | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.